1497430189 has 2 divisors, whose sum is σ = 1497430190. Its totient is φ = 1497430188.

The previous prime is 1497430127. The next prime is 1497430211. The reversal of 1497430189 is 9810347941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1496916100 + 514089 = 38690^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 1497430189 - 2⁹ = 1497429677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1497434189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748715094 + 748715095.

It is an arithmetic number, because the mean of its divisors is an integer number (748715095).

Almost surely, 2^1497430189 is an apocalyptic number.

It is an amenable number.

1497430189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497430189 is an equidigital number, since it uses as much as digits as its factorization.

1497430189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1497430189 is about 38696.6431231444. The cubic root of 1497430189 is about 1144.0601579385.

The spelling of 1497430189 in words is "one billion, four hundred ninety-seven million, four hundred thirty thousand, one hundred eighty-nine".